Qt ordering types: unify the form of the implicit conversion operators

The case statements I used when de-pessimising these functions were
pretty long, bumping against line-length limitations and annoying the
reader with overly long repetitive type names.

Add aliases to fix both issues, and also apply the form to
QPartialOrdering's operator std::partial_ordering for consistency.

I was kinda hoping that this would allow to DRY away some of the
repetition with macros, but it didn't work out in the end. It's still
a lot more pleasant to the eye, so don't let the experiment be for
nothing.

Amends 9c03935c9a22f3f6baa602ec0ea7ce91f4a842f0.

Change-Id: I9786ae5c7be0b8fb30e4df219f1c65b2e8589904
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>

0 files changed, 0 insertions, 0 deletions